Representative imageStatic Compensators (STATCOM)
A STATCOM (Static Synchronous Compensator) is a shunt-connected FACTS device that uses an IGBT voltage-source converter to generate a controllable three-phase voltage in phase with the AC system.
Overview
A STATCOM (Static Synchronous Compensator) is a shunt-connected FACTS device that uses an IGBT voltage-source converter to generate a controllable three-phase voltage in phase with the AC system. By making its internal voltage higher or lower than the grid voltage it supplies (capacitive) or absorbs (inductive) reactive power (VARs) almost instantly, regulating the voltage at the point of connection. Its control is extremely fast, dynamically changing the magnitude and phase of the generated voltage in milliseconds. Buyers choose a STATCOM for dynamic reactive-power compensation, voltage stabilisation, flicker control and power-quality correction on rapidly fluctuating loads where conventional capacitor banks are too slow.
Specifications
| Topology | IGBT voltage-source converter (VSC), shunt-connected |
|---|---|
| Function | supplies VARs when internal V > terminal V (capacitive); absorbs VARs when V < terminal V (inductive) |
| Reactive power range | capacitive/inductive, typical industrial range hundreds of kVAr to multi-MVAr |
| Response time | very fast — typically < 2 cycles (milliseconds) |
| Output | continuously variable reactive current |
| Voltage class | LV/MV (e.g. 415 V LV up to MV with step-up transformer) |
| Frequency | 50 Hz / 60 Hz |
| Functions | voltage regulation, flicker mitigation, harmonic/power-quality support, load balancing |
| Cooling | air or liquid cooled depending on rating |
| Applicable standards | IEEE-1052 (STATCOM systems), IEEE-519, IEC 61000 class |
Applications
- Dynamic voltage regulation at point of common coupling
- Flicker control for arc furnaces, welding and rolling mills
- Reactive-power compensation for fluctuating industrial loads
- Grid / renewable integration voltage support
- Power-quality improvement and load balancing
Frequently asked questions
Do you build custom power electronics & conditioning to specification?
What quality standard does ACE Electromagnetics work to?
How soon will I get a response to a quote request?
Are the specifications shown on this page final?
Request a quote — Static Compensators (STATCOM)
Tell us your application and ratings. Our engineering team replies within one business day.
What we need to quote
- System voltage & frequency
- Load rating (kVA / A)
- Existing or target THD / standard (e.g. IEEE-519)
- Source & load type (drives, rectifiers…)
- Enclosure & mounting
- Application / end-use
Share what you have — we confirm the rest with you.
More in Power Electronics & Conditioning
1PH - 3PH Inverters
A power inverter converts DC input (from batteries, rectifiers, solar arrays or a DC bus)…
ACE Regenerative Systems
A regenerative (active) load system replaces a conventional resistive/reactive load bank used…
ACE Thyristor PFC Modules
A thyristor PFC (power-factor-correction) switching module is a solid-state alternative…